Am 18.11.2016 um 12:20 schrieb Mr:
> William F Pokorny <ano### [at] anonymousorg> wrote:
>> 1) Cone and cylinder uv_mapping have been added to the 3.7.1 master
>> branch compliments of Jérôme. We'll need to update the supported objects
>> at:
>>
>> http://wiki.povray.org/content/Reference:UV_Mapping
>>
>> to reflect this. I believe the behavior is essentially like that of the
>> recently add lemon uv_mapping - but Jérôme knows best.
>>
>> 2) We've decided to leave the uv_mapping of the torus reversed in U
>> relative to other uv_mapping given it has been this way for a long time
>> (early 2000s I think).
>>
>> I think adding a note its mapping is reversed in U with respect to
>> others would be good.
>>
>> Bill P.
> 
> Does this mean the map_type 3 and 4 are in development,
> for POV-Ray, to add more basic mappings to any object even meshes and
> environment textures, like:
> 
> FLAT map_type 0
> SPHERE map_type 1
> TUBE map_type 2?
> CYLINDER?
> CONE?
> any CUBE? or still have to use "warp { cubic }..."

Judging from your question, I presume you're not familiar with POV-Ray's
`uv_mapping` keyword.

You can think of this as a "default warp" that is different for each
primitive.

(A drawback of `uv_mapping`, is that it is only useful for surface
textures, whereas `warp` can also be used for volumetric effects.)

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